eddy - Extracting Disk Dynamics

eddy provides a suite of tools to extract kinematical information from spatially and spectrally resolved line data.

The eddy.rotationmap.rotationmap class enables the fitting of a Keplerian rotation pattern to a rotation map to infer geometrical properties of the disk, a dynamical mass of the star, or to infer the presence of a flared emission surface or warp in the disk.

Installation

Installation is as easy as,

pip install astro-eddy

If you want to live on the edge, you can clone the repository and install that,

pip install .

but I cannot promise everything will work as described here.

Contents

Tutorials

• Frequently Asked Quetsions
• 1 - Fitting Rotation Maps
  • TW Hya - A Geometrically Thin Case
  • Working with the Model
• 2 - Disks with Elevated Emission Surfaces
  • HD 163296 - A Geometrically Thick Disk
• 3 - An Introduction to Working with Annuli
  • linecube
  • annulus
  • Velocity Profiles
• 4 - Different Methods for Inferring Velocities
  • Background
  • Deprojection Basics
  • Maximizing Signal to Noise
  • Minimizing Line Width
  • Gaussian Processes
  • Simple Harmonic Oscillator
  • More Control
• 5 - Self-Gravity and Pressure Supported Disks
  • Parameterization
  • Application to a Self Gravitating Disk
  • Application to a Pressure Supported Disk

Support

If you are having issues, please open a issue on the GitHub page.

Attribution

If you use eddy in any of your work, please cite the JOSS article,

@article{eddy,
    doi = {10.21105/joss.01220},
    url = {https://doi.org/10.21105/joss.01220},
    year = {2019},
    month = {feb},
    publisher = {The Open Journal},
    volume = {4},
    number = {34},
    pages = {1220},
    author = {Richard Teague},
    title = {eddy},
    journal = {The Journal of Open Source Software}
}

License

The project is licensed under the MIT license.